3.5 Numerical Method
95
Fig. 3.5 Disc and shear flow
field
are taken. 9950 steps are figured out using the Level Set method and Particle Level
Set method respectively. Figure 3.6 shows the shape of the interface calculated by the
Level Set method. Figure 3.7 and Fig. 3.8 respectively show the interface shape and
the particle shape calculated by the Particle Level Set method. As shown in Fig. 3.6,
only a very small piece of the original blue disk is left, and most of the disk area
is dissipated. The actual shape after the 9950 steps should be the same as the interface between the blue and red particles shown in Fig. 3.8, because the particles can
always truly reflect the real information of flow field and motion interface. Figure 3.6
indicates that there is a relatively serious non-conservation phenomenon when the
Fig. 3.6 After 9950 steps
are calculated (Level Set)
95
Fig. 3.5 Disc and shear flow
field
are taken. 9950 steps are figured out using the Level Set method and Particle Level
Set method respectively. Figure 3.6 shows the shape of the interface calculated by the
Level Set method. Figure 3.7 and Fig. 3.8 respectively show the interface shape and
the particle shape calculated by the Particle Level Set method. As shown in Fig. 3.6,
only a very small piece of the original blue disk is left, and most of the disk area
is dissipated. The actual shape after the 9950 steps should be the same as the interface between the blue and red particles shown in Fig. 3.8, because the particles can
always truly reflect the real information of flow field and motion interface. Figure 3.6
indicates that there is a relatively serious non-conservation phenomenon when the
Fig. 3.6 After 9950 steps
are calculated (Level Set)